The welfare consequences of selecting turkey breeds for rapid growth and how breed selection affects the health and welfare of farmed turkeys.
Commercial turkey breed selection represents one of the clearest examples in agriculture where production optimization has created systematic welfare problems. The extreme breast muscle hypertrophy selected for meat yield has consequences that extend through the entire biology of the animal: inability to mate naturally, cardiovascular strain from supporting excessive muscle mass, skeletal abnormalities from disproportionate weight distribution, and immunological stress. These are not individual health problems but predictable consequences of the breed itself. Heritage breed production, slower-growing commercial breeds, and welfare certification programs that set maximum growth rate limits demonstrate that turkey meat can be produced without these systematic welfare harms. The welfare case for breed reform in turkeys parallels the broiler chicken case and has received significant attention from animal welfare researchers and advocacy organizations.